ODs Faktasider. Brønnbane / Leting. Generell informasjon. Brønnbane navn 6406/5-1 EXPLORATION. Pressemelding Faktakart i nytt vindu.

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1 Generell informasjon Brønnbane navn 6406/5-1 Type Formål Status Pressemelding Faktakart i nytt vindu Hovedområde EXPLORATION WILDCAT P&A lenke lenke NORWEGIAN SEA Funn 6406/5-1 Brønn navn 6406/5-1 Seismisk lokalisering Boret i utvinningstillatelse 255 Boreoperatør Boretillatelse 1026-L Boreinnretning Bore dager 129 SH00S2-104DA intersecting SH00S2-304D A/S Norske Shell TRANSOCEAN WINNER Borestart Boreslutt Frigitt dato Publiseringsdato Opprinnelig formål Gjenåpnet Innhold Funnbrønnbane WILDCAT NO GAS/CONDENSATE YES 1. nivå med hydrokarboner, alder MIDDLE JURASSIC 1. nivå med hydrokarboner, formasjon Avstand, boredekk - midlere havflate [m] Vanndybde ved midlere havflate [m] GARN FM Totalt målt dybde (MD) [m RKB] Totalt vertikalt dybde (TVD) [m RKB] Temperatur ved bunn av brønnbanen [ C] Eldste penetrerte alder Eldste penetrerte formasjon Geodetisk datum NS grader ØV grader EARLY JURASSIC TILJE FM ED ' 16.62'' N 6 36' 3.13'' E Side 1 av 12

2 NS UTM [m] ØV UTM [m] UTM sone 32 NPDID for brønnbanen 4451 Brønnhistorie General Well 6406/5-1 was drilled on the Halten Terrace, on a structure south of the Kristin field. The objective of well 6406/5-1 was to test and sample the Middle-Lower Jurassic Garn, Ile and Tofte Formations. Operations and results Wildcat well 6406/5-1 was spudded on 23 December 2001 in 286 m water depth with the semi-submersible installation Transocean Winner and drilled to TD at 4692 m in the Early Jurassic Tilje Formation. The well encountered a kick immediately below the base of the Tertiary at 2600 m where hydrocarbons flowed to the surface. An unexpected highly pressured sandy interval of the Springar Formation contained fluid hydrocarbons. Due to problems stabilizing the well bore, the well was technically sidetracked from the 16" casing at 1435 m. The well was drilled with spud mud down to 1434 m, with KCl/PAC/glycol mud from 1434 m to 2691 m, and with Versapro oil based mud from 2691 m to TD. The well found a 41 m hydrocarbon column in the Garn Formation. From MDT sampling the fluid was interpreted to be a rich gas/condensate with a GOR of 373 Sm3/Sm3. However, the reservoir MDT sample was estimated to have a mud contamination of 49%. Estimation of the uncontaminated reservoir fluid composition and the reservoir fluid properties using equations of state (EOS) gave a GOR of 486 Sm3/Sm3. The Ile and Tofte reservoirs were water bearing, but the cores showed fluorescence. All three prognosed reservoirs were encountered with porosities in the range of 7% to 29%. A total of 97 m core was recovered in five cores, one core from the Garn Formation, two cores from the Ile Formation, and two cores from the Tofte Formation. MDT pressures were taken from all reservoirs and fluid samples taken from the Ile and the Garn reservoirs. The pressure measurements at the top of the Garn Formation confirmed the predicted high pressure in the reservoir. The measured pressure was 777 bar. The well was plugged and abandoned on 30 April 2002 as a gas/condensate discovery. Testing No drill stem test was performed Borekaks i OD Borekaksprøve, topp dybde [m] Borekaksprøve, bunn dybde [m] Side 2 av 12

3 Borekaksprøve tilgjengelig YES Borekjerner i OD Kjerneprøve nummer Kjerneprøve - topp dybde Kjerneprøve - bunn Kjerneprøve dybde dybde - enhet [m ] [m ] [m ] [m ] [m ] Total kjerneprøve lengde [m] 98.0 Kjerneprøve tilgjengelig YES Palynolgiske preparater i OD Prøve dybde Dybde enhet Prøve type Laboratorie [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON Side 3 av 12

4 [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON Side 4 av 12

5 [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON Side 5 av 12

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8 [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] C ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] DC ICHRON [m] SWC ICHRON [m] SWC ICHRON [m] SWC ICHRON [m] C ICHRON [m] C ICHRON [m] DC ICHRON [m] C ICHRON [m] DC ICHRON [m] SWC ICHRON [m] SWC ICHRON [m] SWC ICHRON [m] DC ICHRON [m] SWC ICHRON [m] DC ICHRON [m] SWC ICHRON Side 8 av 12

9 [m] DC ICHRON [m] DC ICHRON [m] SWC ICHRON [m] SWC ICHRON [m] DC ICHRON [m] SWC ICHRON [m] DC ICHRON [m] DC ICHRON Litostratigrafi Top depth [m] Lithostrat. unit 312 NORDLAND GP 1452 KAI FM 1910 HORDALAND GP 1910 BRYGGE FM 2459 ROGALAND GP 2459 TARE FM 2584 SHETLAND GP 2584 SPRINGAR FM 2693 NISE FM 2872 KVITNOS FM 3377 CROMER KNOLL GP 3377 LYSING FM 3385 LANGE FM 4060 LYR FM 4072 VIKING GP 4072 SPEKK FM 4077 MELKE FM 4205 FANGST GP 4205 GARN FM 4272 NOT FM 4335 ILE FM 4443 BÅT GP 4443 ROR FM 4487 TOFTE FM 4580 ROR FM 4628 TILJE FM Side 9 av 12

10 Spleisede logger Dokument navn Dokument format Dokument størrelse [KB] 4451 pdf 0.60 Geokjemisk informasjon Dokument navn Dokument format Dokument størrelse [KB] 4451_1 pdf _2 xls _3 xls 0.16 Logger Type logg Topp dyp Bunn dyp for for logg [m] logg [m] AIT DSI GR ASI GR CSI GR CST GR ECRD ACTS IPLT AIT EMS GR ACTS EMS GR GPIT DSI IPLT IPLT AIT DSI MDT GR MDT GR MDT GR MDT GR MWD - CDR RES GR MWD - CDR RES GR MWD - DIR PEX HALS HNGS Foringinsrør og formasjonsstyrketester Type utforing Utforing diam. [tommer] Utforing dybde [m] Brønnbane diam. [tommer] Brønnbane dyp [m] Slam egenvekt ekvivalent [g/cm3] Type formasjonstest CONDUCTOR LOT Side 10 av 12

11 INTERM LOT INTERM LOT INTERM. 13 3/ / LOT INTERM. 9 5/ / LOT OPEN HOLE / LOT Boreslam Dybde Egenvekt, Viskositet, Flytegrense Type slam MD [m] slam [g/cm3] slam [mpa.s] [Pa] SPUD MUD SPUD MUD POLYMER SPUD MUD POLYMER KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL KCL/PAC/GLYCOL OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) OIL (ENVIRON) Dato, måling Side 11 av 12

12 Side 12 av 12